Cisco 1000BASE-LH SFP Optical Transceiver 1.25Gbps 1310nm SMF 40km

Basic Information
Place of Origin: Shenzhen, China
Brand Name: GIGAOPTO
Certification: CE, FCC, ROHS, ISO9001, ISO14000, MSDS, REACH, CP65, TUV, UL
Model Number: GTS-L1312-40DC
Minimum Order Quantity: 1 pcs
Price: Negotiable
Packaging Details: Single Package, 10 or 20pcs per Tray, 30 or 50 or 100pcs per box, 400 or 600pcs per carton
Delivery Time: 1-5 working days
Payment Terms: T/T, Western Union
Supply Ability: 100,000pcs / month
Detail Information
Product Nanme: 1000BASE-LH SFP Optical Transceiver Form Factor: SFP
Data Rate (Max): 1.25Gbps Reach: 40km
Wavelength: 1310nm Optical Components: 1310nm DFB
Cable Type: SMF Connector: LC Duplex
RoHS Compliant: Yes Keywords: 1G SFP 1310nm 40km Module, 1000BASE-LH SFP Optical Module, 1.25G SFP Transceiver Module LC DOM
High Light:

Cisco 1000BASE-LH


1000BASE-LH SFP Optical Transceiver


SFP Transceiver 1.25 Gbps

Product Description

Cisco Linksys Compatible 1000BASE-LH 1310nm SMF 40km DOM Duplex LC SFP Optical Transceiver





Compatible Brand CISCO Linksys Compatible P/N MGBLH1
Packaging SFP Data Rate (Gbps) 1.25Gbps
Optical Connector LC Duplex Transmission Distance 40km
DOM Supported Fiber Type Single Mode Fiber
Center Wavelength 1310nm Temp. Range 0 to 70°C (32 to 158°F)
Laser Type DFB Power Supply Voltage 3.3V
Launched Power -5 ~ 0dBm Power Supply Current <300mA
ER >9dB PD Type PIN
Sensitivity < -24dBm Saturation >-3dBm
Protocols SFF-8472 MSA Compliant, IEEE 802.3ah-2004


Notice: When the long reach transceiver is used in short distance transmission, please matched with appropriate attenuator

according to the table.

Distance ≤10km ≤20km
Attenuator 10dB 5dB




The GIGAOPTO's GTS-L1312-40DC SFP transceiver supports the data rate of up to 1.25Gbps and the transmission distance of 40km SMF. This module is designed for single mode fiber and operates at a nominal wavelength of 1310nm. The transmitter section uses a multiple quantum well 1310nm laser. The receiver section uses an integrated InGaAs detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC. All of this SFP series modules meets the levelⅠlaser safety requirements, and they can be applied in 1.25Gbps optical systems and Gigabit Ethernet, etc.




  • Support up to 1.25Gbps bit rate
  • Single 3.3V power supply and TTL logic interface
  • Operating case temp.: 0°C~70°C (C-Temp); -40°C~85°C (I-Temp)
  • 40km with 9/125 µm SMF
  • Bidirectional transmission over dual fiber
  • SFP MSA package with duplex LC connector
  • Compliant with RoHS6 standard
  • Compliant with SFF-8472
  • Compliant with IEEE 802.3ah-2004




As a global provider of Brand Compatible Networking products, we Gigaopto have made significant investments over the past few years to support our customers, as well as in our physical infrastructure and test equipment platforms. Our overall trusted engineering and testing capabilities allow us to produce a large selection of Brand Compatible Transceivers.
This (1000BASE-LH SFP 1310nm 40km) is 100% compatible with mainstream optical devices. Below is a table of P/N correspondence for different brand modules. For more information, please don't hesitate to contact us.


Compatible Brand Compatible Part Number Compatible Brand Compatible Part Number
Juniper SFP-1GE-EX-40 Dell SFP-LX-40
Arista SFP-1G-EX-40 Extreme I-MGBIC-GLX-40
Brocade E1MG-EX-40 HuaWei 0231A089
D-Link DEM-314GT Allied Telesis AT-SPLX40
Alcatel-Lucent iSFP-GIG-LH40    



Ordering Information


P/N Description Data Rate Wavelength Distance Media Interface
GTS-L0812-02DC 1000BASE-SX SFP 1250Mb/s 850nm




GTS-L1312-M2DC 1000BASE-SX SFP 1250Mb/s 1310nm 2km@OM4 MMF LC
GTS-L1312-10DC 1000BASE-LX SFP 1250Mb/s 1310nm 10km SMF LC
GTS-L1312-20DC 100BASE-LH SFP 1250Mb/s 1310nm 20km SMF LC
GTS-L1512-40DC 1000BASE-EX SFP 1250Mb/s 1550nm 40km SMF LC
GTS-L1312-40DC 1000BASE-EX SFP 1250Mb/s 1310nm 40km SMF LC
GTS-L1512-80DC 1000BASE-ZX SFP 1250Mb/s 1550nm 80km SMF LC
GTS-L1512-A0DC 1000BASE-EZX SFP 1250Mb/s 1550nm 100km SMF LC
GTS-L1512-C0DC 1000BASE-EZX SFP 1250Mb/s 1550nm 120km SMF LC
GTS-L1512-F0DC 1000BASE-EZX SFP 1250Mb/s 1550nm 160km SMF LC


Contact Details

WhatsApp : +8615989585901